Play Sudoku offline – 4x4, 6x6, 9x9 puzzles with hints, themes & printable books!
Train your brain daily and enjoy timeless Sudoku logic puzzles in an easy, distraction-free interface. Sudoku World is perfect for beginners and pros alike – solve, create, print, and learn Sudoku at your own pace.

🧠 Why Sudoku World?
Enjoy relaxing and intelligent gameplay with a minimalist design. Choose from multiple grid sizes – 4x4 for quick logic fun, 6x6 for medium challenge, and classic 9x9 for traditional Sudoku lovers.

Whether you're solving to relax or improve your brain power, Sudoku World offers the tools and flexibility to support your journey — online or offline.

✨ Key Features
✅ Play Offline – No WiFi? No problem! Sudoku World works 100% offline.
✅ 4x4, 6x6, 9x9 Sudoku – Play mini, medium, and full grid puzzles.
✅ 4 Difficulty Levels – Easy, Medium, Hard, and Master for all skill levels.
✅ Smart Hints & Notes – Highlighting, pencil marks, and auto-notes for focus.
✅ Custom Themes – Choose from light, dark, and 6 relaxing color themes.
✅ Undo & Erase – Fix mistakes with one tap and test new logic paths.
✅ Auto Save & Resume – Never lose progress — pick up where you left off.
✅ Instant Validation – Create your own Sudoku puzzle and validate it instantly.
✅ Game Statistics – Track your solve times, accuracy, and level history.
✅ Import or Create Sudoku – Enter puzzles manually and solve with all game features.
✅ Printable Sudoku Books – Download puzzles as clean PDFs to play on paper.
✅ Step-by-Step Learning – Learn Sudoku basics with 11 guided lessons.
✅ Fast & Lightweight – Works smoothly on all Android devices.
✅ No Sign-In Needed – Start playing instantly.

🖨️ Print Sudoku Puzzles Anytime
Prefer pen and paper? Sudoku World lets you print PDF puzzles (by size or difficulty) as high-quality printable PDFs — perfect for travel, gifts, or relaxing offline play.

🧘‍♀️ Built for Focus & Relaxation
No pop-ups, no clutter, no noise. Just peaceful Sudoku. Play while commuting, during breaks, or winding down. Sudoku World is your calming logic companion.

🔐 Privacy First
We never collect personal data. Sudoku World uses trusted tools (Sentry, Firebase, AdMob) for performance and lightweight ads. You're always in control.

🚀 Upcoming Features
- Import Sudoku from Image – Snap a photo and auto-recognize the puzzle with built-in OCR.
- Normal Mode , Multi Grid Sudoku Mode and Unique twist mode for 9 by 9 sudoku
- One-Tap Ad-Free Upgrade – Support the app with a simple, affordable one-time purchase.

📲 Start Playing Now
Download Sudoku World and unlock the most relaxing, customizable, and feature-packed Sudoku experience — offline or online, anytime, anywhere!